318 power?

Dont underestimate or try to "upgrade" the Weiand Stealth intake. It is actually a very good intake that doesnt get the recognition the RPM and Air Gap do. It wont be the piece that restricts your power level unless you really mismatch some parts in the build.

Stealth is a good intake with the dreaded according ot some 273/318 sized intake ports. Spend a couple minutes opening then up and blending up the runners and you are good to go with it. Same with a Performer 318/360 intake, work fine especially with a a little elbow grease.

One thing with the intake, they have a tendency to run lean on the deep plenum side occasionally. Deep side +1 on jet sizing sometimes.